Extender on a 70-200F4L ????

[clarkmarketingservices]

I need to shoot at the local track (miller motorsport park) that is blessed with huge run-off areas so we cant get too close. Has anyone tried a extender on a 70-200F4L, I realise I am going to lose some F stops but I can probably deal with that. Any help would be greatly appreciated.

[yellowmr]

I was out at the long beach grand prix this past weekend and was using my 70-200 f4. In partly cloudy and overcast sky, in TV mode, and at 1/400s my f stop hovered right around f8 (a little above and a little below) using iso 100. I'm sure with the 1.4 TC, similar shutter speeds, and maybe iso 200-400 you'd have no issues.

By the way, Long beach sucks for the general admission photographer. Are there any photoshop pros who can erase a chain link fence from the entire frame? I couldn't get one clean shot.

[TooTall]

By the way, Long beach sucks for the general admission photographer. Are there any photoshop pros who can erase a chain link fence from the entire frame? I couldn't get one clean shot.

It ain't easy, never was. Here is a film shot from 1981. This is from the very top of a grandstand with my old OM-2 with a Vivitar 600mm cat lens.

http://img294.imageshack.us/img294/8360/villeneuve2edgr4.jpg
I went to every F1 race at Long Beach and then a couple of Cart races. Haven't gone since maybe '86 or '87. In general modern tracks are lousy to shoot at. The old Riverside raceway had virtually NO tall fences all the way round. Laguna used to be the same. Sorry, now I'm sounding like the grumpy old man.

Cheers,
Kurt Oblinger

[photonick]

I bought a kenko 1.4 tcon from here last week. Haven't used it properly at an event yet but tried a few shots at the weekend and was really impressed with the quality on the 70-200 f4, couldn't really see any loss of IQ at all and also gives a more oof background, obviously it becomes f5.6 though. Surprisingly when used on my 28-105 f3.5-4.5 it has no effect on fstop :)

[Psychic1]

I use the Canon 1.4xII and cannot detect any AF or IQ loss. I shot these ducks with my 10D, 70-200Lf4 + 1.4xII @ f5.6 - 257mm - 1/750 - iso200.
http://i.pbase.com/g6/37/705637/2/74678085.P8GcCOZh.jpg